by George Pollock (Murder Ahoy, GB, 1964, 1h33, vostf)
starring Margaret Rutherford, Lionel Jeffries, Charles Tingwell, Stringer Davis
The Honourable Mr Hardwicke dies at the very moment he is preparing to divulge important information to his board of directors. The police put it down to a simple heart attack. Yet the formidable Miss Marple, who was present at the scene, is much more suspicious. After detecting the presence of poison in his snuff, she decides to investigate.